| canada | ontario | schoenoplectus pungens | species | 1 | 0 |
| canada | quebec | schoenoplectus pungens | species | 1 | 0 |
| united states | | schoenoplectus pungens | species | 1 | 0 |
| united states | georgia | schoenoplectus pungens var. pungens | varietas | 5 | 0 |
| united states | missouri | schoenoplectus pungens var. longispicatus | varietas | 4 | 0 |
| united states | washington | schoenoplectus pungens var. badius | varietas | 4 | 0 |